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@MASTERSTHESIS{Seidel:1046696,
author = {Seidel, Nadine},
title = {{C}ontrolled {O}rganization of {S}ilica {N}anospheres into
{H}ighly {O}rdered {M}onolayers on a {S}ubstrate},
school = {Heinrich Heine Universität Düsseldorf},
type = {Bachelorarbeit},
reportid = {FZJ-2025-03916},
pages = {51 p.},
year = {2024},
note = {Bachelorarbeit, Heinrich Heine Universität Düsseldorf,
2024},
abstract = {The study of nanoparticle self-assembly has been of
interest in the field ofnanotechnology due to their broad
range of potential applications. It allowsfor the creation
of new nanomaterials with unique properties that differfrom
bulk materials. The distinctive properties of nanoparticles,
such astheir high surface area relative to their volume and
enhanced quantum effects,facilitate the development of new
technology across various industries.However, nanoparticles
must be organized into ordered structures to be ableto
exhibit their characteristics in practical applications.
Therefore, producingstructures with long-range ordering is
needed to utilize the functionalproperties of nanoparticles.
To achieve this, nanoparticle self-assembly is away to
arrange nanoparticles into defined structures using
interparticle andparticle-substrate interactions.In this
thesis, the self-assembly of silica (SiO2) nanoparticles
with a diameterof 200 nm into ordered monolayers on a
silicon substrate is investigated.Silica nanoparticles in
particular offer great tunability of their
physical,chemical, and optical properties, in addition to
their low toxicity andgood biocompatibility. They can be
derived from biomass, making them notonly cost-effective but
also environmentally friendly. Fabricating monolayersfrom
silica nanoparticles allows them to serve as a modulating
substratefor the subsequent deposition of thin films,
thereby enabling the tuning ofproperties such as optical,
mechanical, and magnetic characteristics. Forthis, an
improved version of drop-casting is used to fabricate the
monolayersthat includes the addition of stearyl alcohol to
the nanoparticle dispersion.Then, a drop volume series
investigation is conducted to determine the idealdrop volume
as it is a key factor in the self-assembly process. This is
followed by an additional heat treatment step to improve the
monolayer quality.The structural characterization of the
SiO2 was done by Scanning ElectronMicroscopy (SEM) to obtain
local information, and by X-ray Reflectivity(XRR) and
Grazing-Incidence Small-angle X-ray Scattering (GISAXS)
forglobal average information.},
cin = {JCNS-2 / JARA-FIT},
cid = {I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (FZJ) (POF4-6G4)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
typ = {PUB:(DE-HGF)2},
doi = {10.34734/FZJ-2025-03916},
url = {https://juser.fz-juelich.de/record/1046696},
}